#!/usr/bin/env python
#ecoding = utf-8
__author__ = 'lihao'
import pandas as pd
from pandas import DataFrame
import matplotlib.pyplot as plot
target_url = ("https://archive.ics.uci.edu/ml/machine-learning-databases/undocumented/connectionist-bench/sonar/sonar.all-data")
rocksVMines = pd.read_csv(target_url, header=None, prefix="V")

corMat = DataFrame(rocksVMines.corr())
plot.pcolor(corMat)
plot.show()